کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
671258 | 1459081 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extensional viscosity in uniaxial extension and contraction flow—Comparison of experimental methods and application of the molecular stress function model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Extensional viscosity in uniaxial extension and contraction flow—Comparison of experimental methods and application of the molecular stress function model Extensional viscosity in uniaxial extension and contraction flow—Comparison of experimental methods and application of the molecular stress function model](/preview/png/671258.png)
چکیده انگلیسی
Extensional viscosity of a low-density polyethylene was measured at three temperatures in uniaxial extension by Sentmanat Extension Rheometer, and in contraction flow using the Cogswell analysis. The molecular stress function model was applied to describe the experimental results. The achieved maximum values from uniaxial transient tests were in accordance with the ones obtained by Cogswell method at similar strain level, and the molecular stress function model was able to describe the experimental transient uniaxial extensional data. The steady-state extensional viscosity was not reached in the experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 165, Issues 5–6, March 2010, Pages 212–218
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 165, Issues 5–6, March 2010, Pages 212–218
نویسندگان
Johanna Aho, Víctor H. Rolón-Garrido, Seppo Syrjälä, Manfred H. Wagner,